USB camera using method and system of android device

A technology of camera and equipment, which is applied in the parts of TV system, image communication, color TV, etc. It can solve the problems of poor lens ability of handheld devices, poor photosensitive imaging effect, and inability to compare with professional cameras. To achieve the effect of improving the experience

Inactive Publication Date: 2016-10-12
FUJIAN STAR NET COMM
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AI Technical Summary

Problems solved by technology

[0002] With the popularity of live video broadcasting, more and more people use handheld devices such as mobile phones to shoot videos for live broadcasting. However, if the shooting is poor, the imaging effect of handheld devices cannot be compared with professional cameras, and the imaging effect depends on the camera’s sensitivity. Chip size and technical process, lens quality; generally speaking, the larger the photosensitive chip, the higher the camera grade, the photosensitive chip of the handheld device is only one tenth to one tenth of the professional camera, the handheld device camera and the professional camera Under the same pixels, the effect of photosensitive imaging is also much worse; at the same time, the lens capability of handheld devices is also worse than that of professional cameras. poor camera

Method used

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  • USB camera using method and system of android device
  • USB camera using method and system of android device

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Embodiment Construction

[0041] see figure 1 Shown, a kind of android device of the present invention uses the method for USB camera, and described USB camera is the camera of high frame rate and high resolution, and described method comprises the steps:

[0042] Step 1, obtain the device node name of the USB camera device of access; There are many methods for obtaining the device name, and step 1 described in the present invention is specifically: after using the Android Debug Bridge tool to enter the android device Shell program, compare the USB camera before inserting And the result of ls / dev / videoX when plugged in, the device name of the external USB camera can be obtained twice before plugged in and when plugged in, and the videoX is the device name of the USB camera, where X represents a number.

[0043] Step 2. Open the USB camera device according to the device node name through the open function;

[0044] Step 3, initialize the USB camera device parameters;

[0045] Step 4. Use the V4L2 interf...

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Abstract

The invention provides a USB camera using method of an android device. The USB camera is a camera with high frame rate and high resolution. The method comprises the following steps of S1, acquiring the device node name of the connected USB camera device; S2, opening the USB camera device according to the device node name by an open function; S3, initializing parameters of the USB camera device; and S4, acquiring H264 data collected by the USB camera device by using the V4L2 interface of the android device. The invention also provides a USB camera using system of an android device. The USB camera of the invention is very convenient to carry, and can take clearer videos than a built-in camera under harsh environments.

Description

technical field [0001] The invention relates to the technical field of android equipment, in particular to a method and a system for using a USB camera in an android equipment. Background technique [0002] With the popularity of live video broadcasting, more and more people use handheld devices such as mobile phones to shoot videos for live broadcasting. However, if the shooting is poor, the imaging effect of handheld devices cannot be compared with professional cameras, and the imaging effect depends on the camera’s sensitivity. Chip size and technical process, lens quality; generally speaking, the larger the photosensitive chip, the higher the camera grade, the photosensitive chip of the handheld device is only one tenth to one tenth of the professional camera, the handheld device camera and the professional camera Under the same pixels, the effect of photosensitive imaging is also much worse; at the same time, the lens capability of handheld devices is also worse than th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/77
CPCH04N5/77H04N23/60
Inventor 钟添华陈嗣文
Owner FUJIAN STAR NET COMM
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